22623780 has 48 divisors (see below), whose sum is σ = 63866880. Its totient is φ = 5983488.

The previous prime is 22623773. The next prime is 22623781. The reversal of 22623780 is 8732622.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (22623781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6136 + ... + 9104.

It is an arithmetic number, because the mean of its divisors is an integer number (1330560).

Almost surely, 2^22623780 is an apocalyptic number.

22623780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22623780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31933440).

22623780 is an abundant number, since it is smaller than the sum of its proper divisors (41243100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22623780 is a wasteful number, since it uses less digits than its factorization.

22623780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108 (or 3106 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 22623780 is about 4756.4461523284. The cubic root of 22623780 is about 282.8275575044.

The spelling of 22623780 in words is "twenty-two million, six hundred twenty-three thousand, seven hundred eighty".